USE OF A NITRATE SALT COMPOSITION AS A HEAT TRANSFER OR HEAT STORAGE MEDIUM FOR FIRST OPERATION OF AN APPARATUS CONTAINING THESE MEDIA

    公开(公告)号:US20190137188A1

    公开(公告)日:2019-05-09

    申请号:US16096319

    申请日:2017-04-20

    申请人: BASF SE

    摘要: Use of a nitrate salt composition Z comprising Z1 at least one alkali metal nitrate and optionally alkaline earth metal nitrate and also Z2 at least one alkali metal nitrite and optionally alkaline earth metal nitrite in an amount of Z2 in the range from 1.1 to 15.0 mol % based on the sum of Z1 plus Z2 as heat transfer or heat storage medium in apparatuses in which these heat transfer or heat storage media are comprised at a temperature in the range from 500 to 620° C. and an oxygen partial pressure over the nitrate salt composition in the range from 0.1 to 1.0 atm, wherein the molar amount of the alkali metal nitrite and optionally alkaline earth metal nitrite for a desired temperature selected from the range indicated above and for a desired oxygen partial pressure selected from the range indicated above is calculated by means of the following formula x nitrite = K 6  ( T ) K 6  ( T ) + P O   2 where the variables have the following meanings: xnitrate is the mole fraction of nitrite in a nitrite/nitrate mixture, K6(T) is the temperature-dependent equilibrium constant of the reaction nitrate⇄nitrite+½ oxygen (NO3−⇄ NO2−+½ O2), pO2 is the oxygen partial pressure and T is the temperature of the nitrate salt composition, and the calculated value of the molar concentration of the component Z2 is optionally reduced by 40% or increased by 20% and the nitrate salt composition Z is heated to a maximum operating temperature in the range from 500 to 620° C. in the first start-up of said apparatuses.

    PROCESS FOR RECOVERING 3-METHYLBUT-3-EN-1-OL

    公开(公告)号:US20200239394A1

    公开(公告)日:2020-07-30

    申请号:US16636474

    申请日:2018-08-10

    申请人: BASF SE

    摘要: The present invention relates to a process for recovering 3-methylbut-3-en-1-ol from a feed stream F1 comprising 3-methylbut-3-en-1-ol, one or more solvents, water, and isobutene, wherein 3-methylbut-3-en-1-ol, the one or more solvents and water are separated from isobutene by distillation, the process comprising subjecting the feed stream F1 to distillation conditions in a distillation unit, obtaining a bottoms stream B1 which is enriched in -methylbut-3-en-1-ol, in the one or more solvents and in water compared to the feed stream F1 subjec The present invention relates to a process for recovering 3-methylbut-3-en-1-ol from a feed stream F1 comprising 3-methylbut-3-en-1-ol, one or more solvents, water, and isobutene, wherein 3-methylbut-3-en-1-ol, the one or more solvents and water are separated from isobutene by distillation, the process comprising subjecting the feed stream F1 to distillation conditions in a distillation unit, obtaining a bottoms stream B1 which is enriched in -methylbut-3-en-1-ol, in the one or more solvents and in water compared to the feed stream F1 subjected to distillation conditions, and a top stream T1 which is enriched in isobutene, further subjecting the bottoms stream B1 to distillation conditions in a second distillation unit and obtaining a bottoms stream B2 which is enriched in 3-methylbut-3-en-1-ol compared to the bottoms stream B1 and a top stream T2 which is enriched in water compared to the bottoms stream B1, further subjecting the bottoms stream B2 to distillation conditions in a third distillation unit and obtaining a top stream T3 which is enriched in 3-methylbut-3-en-1-ol compared to the bottoms stream B2 and a bottoms stream B3. ted to distillation conditions, and a top stream T1 which is enriched in isobutene, further subjecting the bot-toms stream B1 to distillation conditions in a second distillation unit and obtaining a bottoms stream B2 which is enriched in 3-methylbut-3-en-1-ol compared to the bottoms stream B1 and a top stream T2 which is enriched in water compared to the bottoms stream B1, further subjecting the bottoms stream B2 to distillation conditions in a third distillation unit and obtaining a top stream T3 which is enriched in 3-methylbut-3-en-1-ol compared to the bottoms stream B2 and a bottoms stream B3.

    PIPELINE SYSTEM FOR A SOLAR POWER PLANT
    3.
    发明申请
    PIPELINE SYSTEM FOR A SOLAR POWER PLANT 有权
    太阳能发电厂管道系统

    公开(公告)号:US20170009749A1

    公开(公告)日:2017-01-12

    申请号:US15113125

    申请日:2015-01-23

    申请人: BASF SE

    摘要: The invention relates to a pipeline system for a linearly concentrating solar power plant (1) with at least one receiver line (13), in which a heat transfer medium is heated by radiating solar energy, or with a central receiver and at least one emptying tank (21) and/or one store for the heat transfer medium, the heat transfer medium having a vapor pressure of less than 0.5 bar at the maximum operating temperature. Furthermore, a gas displacement system (31) is comprised, which connects gas spaces in the at least one emptying tank (21) and/or in the store for the heat transfer medium to one another and which has a central gas store (35) and/or a central gas connection (37) and a central exhaust gas outlet (39), through which gas can be discharged into the surroundings.

    摘要翻译: 本发明涉及一种用于具有至少一个接收线(13)的线性集中太阳能发电厂(1)的管道系统,其中传热介质通过辐射太阳能加热,或与中央接收器一起加热,并且至少一个排空 罐(21)和/或用于传热介质的一个储存器,传热介质在最大工作温度下具有小于0.5巴的蒸气压。 此外,包括气体置换系统(31),其将至少一个排空罐(21)中的空间和/或用于传热介质的储存器彼此连接并具有中央气体储存器(35) 和/或中央气体连接(37)和中央排气出口(39),气体可以通过该排气口排出到周围。

    PROCESS FOR RECOVERING ISOPRENOL
    6.
    发明公开

    公开(公告)号:US20240158325A1

    公开(公告)日:2024-05-16

    申请号:US18281451

    申请日:2022-03-11

    申请人: BASF SE

    IPC分类号: C07C29/80 B01D3/14

    CPC分类号: C07C29/80 B01D3/143

    摘要: A process for recovering isoprenol essentially free of formaldehyde from a stream of crude isoprenol containing isoprenol, water and formaldehyde, the process comprising subjecting the stream of crude isoprenol or an isoprenol containing fraction thereof to distillation in a low-boiler separation tower operated at a pressure of 2.5 bara or higher to obtain a distillate stream containing aqueous formaldehyde and a bottoms stream containing isoprenol. The process of the invention allows for obtaining isoprenol essentially free of formaldehyde. Further provided is a plant for recovering isoprenol essentially free of formaldehyde from a stream of crude isoprenol containing isoprenol, water and formaldehyde, the plant comprising a first low-boiler separation tower, a second low-boiler separation tower, and a finishing tower.

    METHOD FOR OPERATING A LINEAR CONCENTRATOR SOLAR POWER PLANT, AND LINEAR CONCENTRATOR SOLAR POWER PLANT
    8.
    发明申请
    METHOD FOR OPERATING A LINEAR CONCENTRATOR SOLAR POWER PLANT, AND LINEAR CONCENTRATOR SOLAR POWER PLANT 审中-公开
    线性浓缩器太阳能发电厂和线性浓缩器太阳能发电厂的运行方法

    公开(公告)号:US20170010024A1

    公开(公告)日:2017-01-12

    申请号:US15116246

    申请日:2015-02-05

    申请人: BASF SE

    IPC分类号: F24J2/07 F24J2/34 F24J2/30

    摘要: The invention relates to a method for operating a linearly concentrating solar power plant (1), in which a heat transfer medium flows through a pipeline loop (47) having at least one receiver, the heat transfer medium having a flow velocity which is such that the flow in the pipeline loop (47) is turbulent, at least part of the heat transfer medium, upon exit from the pipeline loop (47), being extracted and recirculated into the pipeline loop (47). Furthermore, the invention relates to a linearly concentrating solar power plant with at least one pipeline loop (47) having at least one receiver in which a heat transfer medium flowing through the pipeline loop (47) is heated by irradiating solar energy, a mixing device (27) being comprised, in which at least part of the heat transfer medium flowing through the pipeline loop (47) is mixed with heat transfer medium to be delivered.

    摘要翻译: 本发明涉及一种用于操作线性聚光太阳能发电厂(1)的方法,其中传热介质流过具有至少一个接收器的管道回路(47),所述传热介质的流速为 管道回路(47)中的流动是湍流的,在从管道回路(47)出口时,传热介质的至少一部分被提取并再循环到管道回路(47)中。 此外,本发明涉及一种具有至少一个具有至少一个接收器的至少一个管道回路(47)的线性集中太阳能发电厂,其中流经管线回路(47)的传热介质通过照射太阳能被加热,混合装置 (27),其中流过管道回路(47)的至少一部分传热介质与要传送的传热介质混合。

    CONTAINER FOR STORING A LIQUID, AND USE THEREOF

    公开(公告)号:US20180112929A1

    公开(公告)日:2018-04-26

    申请号:US15575660

    申请日:2016-05-19

    申请人: BASF SE

    IPC分类号: F28D20/00

    摘要: The invention relates to a container for storing a liquid, which tends to decompose into gaseous decomposition components in the case of the conditions prevailing in the container (1) and in the case of which a chemical reaction equilibrium results between gaseous decomposition components and liquid, wherein a floating roof (29) is accommodated in the container (1) and the floating roof (29) comprises floats (33), using which the floating roof (29) floats on the liquid, and wherein the floating roof (29) is guided using a sliding seal (45) in the container (1).The invention furthermore relates to a device for storing heat, comprising a first container (57) for storing a colder liquid and a second container (59) for storing a hotter liquid and a use of the container and the device for storing heat.